Fix bug 7104 - "wide links" and "unix extensions" are incompatible.
[samba.git] / source3 / smbd / vfs.c
index 7e60d3dacbd6da115c49862d7b812c63c5fe583c..94bdb1f495c423ce3eb0c252ec3e0c6b3f0308b1 100644 (file)
@@ -4,10 +4,12 @@
    VFS initialisation and support functions
    Copyright (C) Tim Potter 1999
    Copyright (C) Alexander Bokovoy 2002
+   Copyright (C) James Peach 2006
+   Copyright (C) Volker Lendecke 2009
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
    This work was sponsored by Optifacio Software Services, Inc.
 */
 
 #include "includes.h"
+#include "smbd/globals.h"
 
 #undef DBGC_CLASS
 #define DBGC_CLASS DBGC_VFS
 
+static_decl_vfs;
 
-/* Some structures to help us initialise the vfs operations table */
-
-struct vfs_syminfo {
+struct vfs_init_function_entry {
        char *name;
-       void *fptr;
+       struct vfs_init_function_entry *prev, *next;
+       const struct vfs_fn_pointers *fns;
 };
 
-/*
-  Opaque (final) vfs operations. This is a combination of first-met opaque vfs operations
-  across all currently processed modules.  */
-
-static vfs_op_tuple vfs_opaque_ops[SMB_VFS_OP_LAST];
-
-/* Default vfs hooks.  WARNING: The order of these initialisers is
-   very important.  They must be in the same order as defined in
-   vfs.h.  Change at your own peril. */
-
-static struct vfs_ops default_vfs_ops = {
-
-       /* Disk operations */
-
-       vfswrap_dummy_connect,
-       vfswrap_dummy_disconnect,
-       vfswrap_disk_free,
-
-       /* Directory operations */
-
-       vfswrap_opendir,
-       vfswrap_readdir,
-       vfswrap_mkdir,
-       vfswrap_rmdir,
-       vfswrap_closedir,
-
-       /* File operations */
-
-       vfswrap_open,
-       vfswrap_close,
-       vfswrap_read,
-       vfswrap_write,
-       vfswrap_lseek,
-       vfswrap_sendfile,
-       vfswrap_rename,
-       vfswrap_fsync,
-       vfswrap_stat,
-       vfswrap_fstat,
-       vfswrap_lstat,
-       vfswrap_unlink,
-       vfswrap_chmod,
-       vfswrap_fchmod,
-       vfswrap_chown,
-       vfswrap_fchown,
-       vfswrap_chdir,
-       vfswrap_getwd,
-       vfswrap_utime,
-       vfswrap_ftruncate,
-       vfswrap_lock,
-       vfswrap_symlink,
-       vfswrap_readlink,
-       vfswrap_link,
-       vfswrap_mknod,
-       vfswrap_realpath,
-
-       vfswrap_fget_nt_acl,
-       vfswrap_get_nt_acl,
-       vfswrap_fset_nt_acl,
-       vfswrap_set_nt_acl,
-
-       /* POSIX ACL operations. */
-#if defined(HAVE_NO_ACLS)
-       NULL,
-       NULL,
-#else
-       vfswrap_chmod_acl,
-       vfswrap_fchmod_acl,
-#endif
-       vfswrap_sys_acl_get_entry,
-       vfswrap_sys_acl_get_tag_type,
-       vfswrap_sys_acl_get_permset,
-       vfswrap_sys_acl_get_qualifier,
-       vfswrap_sys_acl_get_file,
-       vfswrap_sys_acl_get_fd,
-       vfswrap_sys_acl_clear_perms,
-       vfswrap_sys_acl_add_perm,
-       vfswrap_sys_acl_to_text,
-       vfswrap_sys_acl_init,
-       vfswrap_sys_acl_create_entry,
-       vfswrap_sys_acl_set_tag_type,
-       vfswrap_sys_acl_set_qualifier,
-       vfswrap_sys_acl_set_permset,
-       vfswrap_sys_acl_valid,
-       vfswrap_sys_acl_set_file,
-       vfswrap_sys_acl_set_fd,
-       vfswrap_sys_acl_delete_def_file,
-       vfswrap_sys_acl_get_perm,
-       vfswrap_sys_acl_free_text,
-       vfswrap_sys_acl_free_acl,
-       vfswrap_sys_acl_free_qualifier
-};
+/****************************************************************************
+    maintain the list of available backends
+****************************************************************************/
+
+static struct vfs_init_function_entry *vfs_find_backend_entry(const char *name)
+{
+       struct vfs_init_function_entry *entry = backends;
+
+       DEBUG(10, ("vfs_find_backend_entry called for %s\n", name));
+
+       while(entry) {
+               if (strcmp(entry->name, name)==0) return entry;
+               entry = entry->next;
+       }
+
+       return NULL;
+}
+
+NTSTATUS smb_register_vfs(int version, const char *name,
+                         const struct vfs_fn_pointers *fns)
+{
+       struct vfs_init_function_entry *entry = backends;
+
+       if ((version != SMB_VFS_INTERFACE_VERSION)) {
+               DEBUG(0, ("Failed to register vfs module.\n"
+                         "The module was compiled against SMB_VFS_INTERFACE_VERSION %d,\n"
+                         "current SMB_VFS_INTERFACE_VERSION is %d.\n"
+                         "Please recompile against the current Samba Version!\n",  
+                         version, SMB_VFS_INTERFACE_VERSION));
+               return NT_STATUS_OBJECT_TYPE_MISMATCH;
+       }
+
+       if (!name || !name[0]) {
+               DEBUG(0,("smb_register_vfs() called with NULL pointer or empty name!\n"));
+               return NT_STATUS_INVALID_PARAMETER;
+       }
+
+       if (vfs_find_backend_entry(name)) {
+               DEBUG(0,("VFS module %s already loaded!\n", name));
+               return NT_STATUS_OBJECT_NAME_COLLISION;
+       }
+
+       entry = SMB_XMALLOC_P(struct vfs_init_function_entry);
+       entry->name = smb_xstrdup(name);
+       entry->fns = fns;
+
+       DLIST_ADD(backends, entry);
+       DEBUG(5, ("Successfully added vfs backend '%s'\n", name));
+       return NT_STATUS_OK;
+}
 
 /****************************************************************************
   initialise default vfs hooks
@@ -134,221 +95,221 @@ static struct vfs_ops default_vfs_ops = {
 static void vfs_init_default(connection_struct *conn)
 {
        DEBUG(3, ("Initialising default vfs hooks\n"));
-
-       memcpy(&conn->vfs_ops, &default_vfs_ops, sizeof(struct vfs_ops));
-       conn->vfs_private = NULL;
+       vfs_init_custom(conn, DEFAULT_VFS_MODULE_NAME);
 }
 
 /****************************************************************************
   initialise custom vfs hooks
-****************************************************************************/
+ ****************************************************************************/
 
-BOOL vfs_init_custom(connection_struct *conn, const char *vfs_object)
+bool vfs_init_custom(connection_struct *conn, const char *vfs_object)
 {
-       int vfs_version = -1;
-       vfs_op_tuple *ops, *(*init_fptr)(int *, const struct vfs_ops *, struct smb_vfs_handle_struct *);
-       int i;
+       char *module_path = NULL;
+       char *module_name = NULL;
+       char *module_param = NULL, *p;
+       vfs_handle_struct *handle;
+       const struct vfs_init_function_entry *entry;
+
+       if (!conn||!vfs_object||!vfs_object[0]) {
+               DEBUG(0,("vfs_init_custon() called with NULL pointer or emtpy vfs_object!\n"));
+               return False;
+       }
 
-       DEBUG(3, ("Initialising custom vfs hooks from %s\n", vfs_object));
+       if(!backends) {
+               static_init_vfs;
+       }
 
-       /* Open object file */
+       DEBUG(3, ("Initialising custom vfs hooks from [%s]\n", vfs_object));
 
-       if ((conn->vfs_private->handle = sys_dlopen(vfs_object, RTLD_NOW)) == NULL) {
-               DEBUG(0, ("Error opening %s: %s\n", vfs_object, sys_dlerror()));
-               return False;
+       module_path = smb_xstrdup(vfs_object);
+
+       p = strchr_m(module_path, ':');
+
+       if (p) {
+               *p = 0;
+               module_param = p+1;
+               trim_char(module_param, ' ', ' ');
        }
 
-       /* Get handle on vfs_init() symbol */
+       trim_char(module_path, ' ', ' ');
 
-       init_fptr = (vfs_op_tuple *(*)(int *, const struct vfs_ops *, struct smb_vfs_handle_struct *))sys_dlsym(conn->vfs_private->handle, "vfs_init");
+       module_name = smb_xstrdup(module_path);
 
-       if (init_fptr == NULL) {
-               DEBUG(0, ("No vfs_init() symbol found in %s\n", vfs_object));
-               return False;
-       }
+       if ((module_name[0] == '/') &&
+           (strcmp(module_path, DEFAULT_VFS_MODULE_NAME) != 0)) {
 
-       /* Initialise vfs_ops structure */
+               /*
+                * Extract the module name from the path. Just use the base
+                * name of the last path component.
+                */
 
-       if ((ops = init_fptr(&vfs_version, &conn->vfs_ops, conn->vfs_private)) == NULL) {
-               DEBUG(0, ("vfs_init() function from %s failed\n", vfs_object));
-               return False;
-       }
-  
-       if ((vfs_version < SMB_VFS_INTERFACE_CASCADED)) {
-               DEBUG(0, ("vfs_init() returned wrong interface version info (was %d, should be no less than %d)\n",
-                       vfs_version, SMB_VFS_INTERFACE_VERSION ));
-               return False;
-       }
-  
-       if ((vfs_version < SMB_VFS_INTERFACE_VERSION)) {
-               DEBUG(0, ("Warning: vfs_init() states that module confirms interface version #%d, current interface version is #%d.\n\
-Proceeding in compatibility mode, new operations (since version #%d) will fallback to default ones.\n",
-                       vfs_version, SMB_VFS_INTERFACE_VERSION, vfs_version ));
-               return False;
-       }
-  
-       for(i=0; ops[i].op != NULL; i++) {
-         DEBUG(3, ("Checking operation #%d (type %d, layer %d)\n", i, ops[i].type, ops[i].layer));
-         if(ops[i].layer == SMB_VFS_LAYER_OPAQUE) {
-           /* Check whether this operation was already made opaque by different module */
-           if(vfs_opaque_ops[ops[i].type].op == ((void**)&default_vfs_ops)[ops[i].type]) {
-             /* No, it isn't overloaded yet. Overload. */
-             DEBUG(3, ("Making operation type %d opaque [module %s]\n", ops[i].type, vfs_object));
-             vfs_opaque_ops[ops[i].type] = ops[i];
-           }
-         }
-         /* Change current VFS disposition*/
-         DEBUG(3, ("Accepting operation type %d from module %s\n", ops[i].type, vfs_object));
-         ((void**)&conn->vfs_ops)[ops[i].type] = ops[i].op;
-       }
+               SAFE_FREE(module_name);
+               module_name = smb_xstrdup(strrchr_m(module_path, '/')+1);
 
-       return True;
-}
+               p = strchr_m(module_name, '.');
 
-/*****************************************************************
- Generic VFS init.
-******************************************************************/
+               if (p != NULL) {
+                       *p = '\0';
+               }
+       }
 
-BOOL smbd_vfs_init(connection_struct *conn)
-{
-       char **vfs_objects, *vfsobj, *vfs_module, *vfs_path;
-       int nobj, i;
-       struct smb_vfs_handle_struct *handle;
-       
-       /* Normal share - initialise with disk access functions */
-       vfs_init_default(conn);
+       /* First, try to load the module with the new module system */
+       entry = vfs_find_backend_entry(module_name);
+       if (!entry) {
+               NTSTATUS status;
 
-       /* Override VFS functions if 'vfs object' was specified*/
-       if (*lp_vfsobj(SNUM(conn))) {
-               vfsobj = NULL;
-               for(i=0; i<SMB_VFS_OP_LAST; i++) {
-                 vfs_opaque_ops[i].op = ((void**)&default_vfs_ops)[i];
-                 vfs_opaque_ops[i].type = i;
-                 vfs_opaque_ops[i].layer = SMB_VFS_LAYER_OPAQUE;
+               DEBUG(5, ("vfs module [%s] not loaded - trying to load...\n",
+                         vfs_object));
+
+               status = smb_probe_module("vfs", module_path);
+               if (!NT_STATUS_IS_OK(status)) {
+                       DEBUG(0, ("error probing vfs module '%s': %s\n",
+                                 module_path, nt_errstr(status)));
+                       goto fail;
                }
-               if (string_set(&vfsobj, lp_vfsobj(SNUM(conn)))) {
-                       /* Parse passed modules specification to array of modules */
-                       set_first_token(vfsobj);
-                       /* We are using default separators: ' \t\r\n' */
-                       vfs_objects = toktocliplist(&nobj, NULL);
-                       if (vfs_objects) {
-                               vfs_path = lp_vfs_path(SNUM(conn));
-                               conn->vfs_private = NULL;
-                               for(i=nobj-1; i>=0; i--) {
-                                       handle = (struct smb_vfs_handle_struct *) smb_xmalloc(sizeof(smb_vfs_handle_struct));
-                                       /* Loadable object file */
-                                       handle->handle = NULL;
-                                       DLIST_ADD(conn->vfs_private, handle)
-                                       vfs_module = NULL;
-                                       if (vfs_path) {
-                                               asprintf(&vfs_module, "%s/%s", vfs_path, vfs_objects[i]);
-                                       } else {
-                                               asprintf(&vfs_module, "%s", vfs_objects[i]);
-                                       }
-                                       if (!vfs_init_custom(conn, vfs_module)) {
-                                               DEBUG(0, ("smbd_vfs_init: vfs_init_custom failed for %s\n", vfs_module));
-                                               string_free(&vfsobj);
-                                               SAFE_FREE(vfs_module);
-                                               return False;
-                                       }
-                                       SAFE_FREE(vfs_module);
-                               }
-                       }
-                       string_free(&vfsobj);
-                       return True;
+
+               entry = vfs_find_backend_entry(module_name);
+               if (!entry) {
+                       DEBUG(0,("Can't find a vfs module [%s]\n",vfs_object));
+                       goto fail;
                }
        }
-       return True;
-}
 
-/*******************************************************************
- Create vfs_ops reflecting current vfs_opaque_ops
-*******************************************************************/
+       DEBUGADD(5,("Successfully loaded vfs module [%s] with the new modules system\n", vfs_object));
 
-struct vfs_ops *smb_vfs_get_opaque_ops(void)
-{
-  int i;
-  struct vfs_ops *ops;
+       handle = TALLOC_ZERO_P(conn, vfs_handle_struct);
+       if (!handle) {
+               DEBUG(0,("TALLOC_ZERO() failed!\n"));
+               goto fail;
+       }
+       handle->conn = conn;
+       handle->fns = entry->fns;
+       if (module_param) {
+               handle->param = talloc_strdup(conn, module_param);
+       }
+       DLIST_ADD(conn->vfs_handles, handle);
 
-  ops = smb_xmalloc(sizeof(struct vfs_ops));
+       SAFE_FREE(module_path);
+       SAFE_FREE(module_name);
+       return True;
 
-  for(i=0; i<SMB_VFS_OP_LAST; i++) {
-    ((void**)ops)[i] = vfs_opaque_ops[i].op;
-  }
-  return ops;
+ fail:
+       SAFE_FREE(module_path);
+       SAFE_FREE(module_name);
+       return False;
 }
 
-/*******************************************************************
- Check if directory exists.
-********************************************************************/
+/*****************************************************************
+ Allow VFS modules to extend files_struct with VFS-specific state.
+ This will be ok for small numbers of extensions, but might need to
+ be refactored if it becomes more widely used.
+******************************************************************/
 
-BOOL vfs_directory_exist(connection_struct *conn, const char *dname, SMB_STRUCT_STAT *st)
-{
-       SMB_STRUCT_STAT st2;
-       BOOL ret;
+#define EXT_DATA_AREA(e) ((uint8 *)(e) + sizeof(struct vfs_fsp_data))
 
-       if (!st)
-               st = &st2;
+void *vfs_add_fsp_extension_notype(vfs_handle_struct *handle,
+                                  files_struct *fsp, size_t ext_size,
+                                  void (*destroy_fn)(void *p_data))
+{
+       struct vfs_fsp_data *ext;
+       void * ext_data;
 
-       if (vfs_stat(conn,dname,st) != 0)
-               return(False);
+       /* Prevent VFS modules adding multiple extensions. */
+       if ((ext_data = vfs_fetch_fsp_extension(handle, fsp))) {
+               return ext_data;
+       }
 
-       ret = S_ISDIR(st->st_mode);
-       if(!ret)
-               errno = ENOTDIR;
+       ext = (struct vfs_fsp_data *)TALLOC_ZERO(
+               handle->conn, sizeof(struct vfs_fsp_data) + ext_size);
+       if (ext == NULL) {
+               return NULL;
+       }
 
-       return ret;
+       ext->owner = handle;
+       ext->next = fsp->vfs_extension;
+       ext->destroy = destroy_fn;
+       fsp->vfs_extension = ext;
+       return EXT_DATA_AREA(ext);
 }
 
-/*******************************************************************
- vfs getwd wrapper 
-********************************************************************/
-
-static char *vfs_getwd(connection_struct *conn, char *path)
+void vfs_remove_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
 {
-       return conn->vfs_ops.getwd(conn,path);
+       struct vfs_fsp_data *curr;
+       struct vfs_fsp_data *prev;
+
+       for (curr = fsp->vfs_extension, prev = NULL;
+            curr;
+            prev = curr, curr = curr->next) {
+               if (curr->owner == handle) {
+                   if (prev) {
+                           prev->next = curr->next;
+                   } else {
+                           fsp->vfs_extension = curr->next;
+                   }
+                   if (curr->destroy) {
+                           curr->destroy(EXT_DATA_AREA(curr));
+                   }
+                   TALLOC_FREE(curr);
+                   return;
+               }
+       }
 }
 
-/*******************************************************************
- vfs mkdir wrapper 
-********************************************************************/
-
-int vfs_mkdir(connection_struct *conn, const char *name, mode_t mode)
+void *vfs_memctx_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
 {
-       int ret;
-       SMB_STRUCT_STAT sbuf;
+       struct vfs_fsp_data *head;
 
-       if(!(ret=conn->vfs_ops.mkdir(conn,name,mode))) {
+       for (head = fsp->vfs_extension; head; head = head->next) {
+               if (head->owner == handle) {
+                       return head;
+               }
+       }
 
-               inherit_access_acl(conn, name, mode);
+       return NULL;
+}
 
-               /*
-                * Check if high bits should have been set,
-                * then (if bits are missing): add them.
-                * Consider bits automagically set by UNIX, i.e. SGID bit from parent dir.
-                */
-               if(mode & ~(S_IRWXU|S_IRWXG|S_IRWXO) &&
-                               !vfs_stat(conn,name,&sbuf) && (mode & ~sbuf.st_mode))
-                       vfs_chmod(conn,name,sbuf.st_mode | (mode & ~sbuf.st_mode));
+void *vfs_fetch_fsp_extension(vfs_handle_struct *handle, files_struct *fsp)
+{
+       struct vfs_fsp_data *head;
+
+       head = (struct vfs_fsp_data *)vfs_memctx_fsp_extension(handle, fsp);
+       if (head != NULL) {
+               return EXT_DATA_AREA(head);
        }
-       return ret;
+
+       return NULL;
 }
 
-/*******************************************************************
- Check if an object exists in the vfs.
-********************************************************************/
+#undef EXT_DATA_AREA
+
+/*****************************************************************
+ Generic VFS init.
+******************************************************************/
 
-BOOL vfs_object_exist(connection_struct *conn,const char *fname,SMB_STRUCT_STAT *sbuf)
+bool smbd_vfs_init(connection_struct *conn)
 {
-       SMB_STRUCT_STAT st;
+       const char **vfs_objects;
+       unsigned int i = 0;
+       int j = 0;
+
+       /* Normal share - initialise with disk access functions */
+       vfs_init_default(conn);
+       vfs_objects = lp_vfs_objects(SNUM(conn));
 
-       if (!sbuf)
-               sbuf = &st;
+       /* Override VFS functions if 'vfs object' was not specified*/
+       if (!vfs_objects || !vfs_objects[0])
+               return True;
 
-       ZERO_STRUCTP(sbuf);
+       for (i=0; vfs_objects[i] ;) {
+               i++;
+       }
 
-       if (vfs_stat(conn,fname,sbuf) == -1)
-               return(False);
+       for (j=i-1; j >= 0; j--) {
+               if (!vfs_init_custom(conn, vfs_objects[j])) {
+                       DEBUG(0, ("smbd_vfs_init: vfs_init_custom failed for %s\n", vfs_objects[j]));
+                       return False;
+               }
+       }
        return True;
 }
 
@@ -356,18 +317,15 @@ BOOL vfs_object_exist(connection_struct *conn,const char *fname,SMB_STRUCT_STAT
  Check if a file exists in the vfs.
 ********************************************************************/
 
-BOOL vfs_file_exist(connection_struct *conn, const char *fname,SMB_STRUCT_STAT *sbuf)
+NTSTATUS vfs_file_exist(connection_struct *conn, struct smb_filename *smb_fname)
 {
-       SMB_STRUCT_STAT st;
-
-       if (!sbuf)
-               sbuf = &st;
-
-       ZERO_STRUCTP(sbuf);
+       /* Only return OK if stat was successful and S_ISREG */
+       if ((SMB_VFS_STAT(conn, smb_fname) != -1) &&
+           S_ISREG(smb_fname->st.st_ex_mode)) {
+               return NT_STATUS_OK;
+       }
 
-       if (vfs_stat(conn,fname,sbuf) == -1)
-               return False;
-       return(S_ISREG(sbuf->st_mode));
+       return NT_STATUS_OBJECT_NAME_NOT_FOUND;
 }
 
 /****************************************************************************
@@ -380,8 +338,30 @@ ssize_t vfs_read_data(files_struct *fsp, char *buf, size_t byte_count)
 
        while (total < byte_count)
        {
-               ssize_t ret = fsp->conn->vfs_ops.read(fsp, fsp->fd, buf + total,
-                                       byte_count - total);
+               ssize_t ret = SMB_VFS_READ(fsp, buf + total,
+                                          byte_count - total);
+
+               if (ret == 0) return total;
+               if (ret == -1) {
+                       if (errno == EINTR)
+                               continue;
+                       else
+                               return -1;
+               }
+               total += ret;
+       }
+       return (ssize_t)total;
+}
+
+ssize_t vfs_pread_data(files_struct *fsp, char *buf,
+                size_t byte_count, SMB_OFF_T offset)
+{
+       size_t total=0;
+
+       while (total < byte_count)
+       {
+               ssize_t ret = SMB_VFS_PREAD(fsp, buf + total,
+                                       byte_count - total, offset + total);
 
                if (ret == 0) return total;
                if (ret == -1) {
@@ -399,13 +379,27 @@ ssize_t vfs_read_data(files_struct *fsp, char *buf, size_t byte_count)
  Write data to a fd on the vfs.
 ****************************************************************************/
 
-ssize_t vfs_write_data(files_struct *fsp,const char *buffer,size_t N)
+ssize_t vfs_write_data(struct smb_request *req,
+                       files_struct *fsp,
+                       const char *buffer,
+                       size_t N)
 {
        size_t total=0;
        ssize_t ret;
 
+       if (req && req->unread_bytes) {
+               SMB_ASSERT(req->unread_bytes == N);
+               /* VFS_RECVFILE must drain the socket
+                * before returning. */
+               req->unread_bytes = 0;
+               return SMB_VFS_RECVFILE(smbd_server_fd(),
+                                       fsp,
+                                       (SMB_OFF_T)-1,
+                                       N);
+       }
+
        while (total < N) {
-               ret = fsp->conn->vfs_ops.write(fsp,fsp->fd,buffer + total,N - total);
+               ret = SMB_VFS_WRITE(fsp, buffer + total, N - total);
 
                if (ret == -1)
                        return -1;
@@ -417,65 +411,113 @@ ssize_t vfs_write_data(files_struct *fsp,const char *buffer,size_t N)
        return (ssize_t)total;
 }
 
+ssize_t vfs_pwrite_data(struct smb_request *req,
+                       files_struct *fsp,
+                       const char *buffer,
+                       size_t N,
+                       SMB_OFF_T offset)
+{
+       size_t total=0;
+       ssize_t ret;
+
+       if (req && req->unread_bytes) {
+               SMB_ASSERT(req->unread_bytes == N);
+               /* VFS_RECVFILE must drain the socket
+                * before returning. */
+               req->unread_bytes = 0;
+               return SMB_VFS_RECVFILE(smbd_server_fd(),
+                                       fsp,
+                                       offset,
+                                       N);
+       }
+
+       while (total < N) {
+               ret = SMB_VFS_PWRITE(fsp, buffer + total, N - total,
+                                    offset + total);
+
+               if (ret == -1)
+                       return -1;
+               if (ret == 0)
+                       return total;
+
+               total += ret;
+       }
+       return (ssize_t)total;
+}
 /****************************************************************************
  An allocate file space call using the vfs interface.
  Allocates space for a file from a filedescriptor.
  Returns 0 on success, -1 on failure.
 ****************************************************************************/
 
-int vfs_allocate_file_space(files_struct *fsp, SMB_BIG_UINT len)
+int vfs_allocate_file_space(files_struct *fsp, uint64_t len)
 {
        int ret;
        SMB_STRUCT_STAT st;
        connection_struct *conn = fsp->conn;
-       struct vfs_ops *vfs_ops = &conn->vfs_ops;
-       SMB_BIG_UINT space_avail;
-       SMB_BIG_UINT bsize,dfree,dsize;
-
-       release_level_2_oplocks_on_change(fsp);
+       uint64_t space_avail;
+       uint64_t bsize,dfree,dsize;
 
        /*
         * Actually try and commit the space on disk....
         */
 
-       DEBUG(10,("vfs_allocate_file_space: file %s, len %.0f\n", fsp->fsp_name, (double)len ));
+       DEBUG(10,("vfs_allocate_file_space: file %s, len %.0f\n",
+                 fsp_str_dbg(fsp), (double)len));
 
        if (((SMB_OFF_T)len) < 0) {
-               DEBUG(0,("vfs_allocate_file_space: %s negative len requested.\n", fsp->fsp_name ));
+               DEBUG(0,("vfs_allocate_file_space: %s negative len "
+                        "requested.\n", fsp_str_dbg(fsp)));
+               errno = EINVAL;
                return -1;
        }
 
-       ret = vfs_fstat(fsp,fsp->fd,&st);
+       ret = SMB_VFS_FSTAT(fsp, &st);
        if (ret == -1)
                return ret;
 
-       if (len == (SMB_BIG_UINT)st.st_size)
+       if (len == (uint64_t)st.st_ex_size)
                return 0;
 
-       if (len < (SMB_BIG_UINT)st.st_size) {
+       if (len < (uint64_t)st.st_ex_size) {
                /* Shrink - use ftruncate. */
 
-               DEBUG(10,("vfs_allocate_file_space: file %s, shrink. Current size %.0f\n",
-                               fsp->fsp_name, (double)st.st_size ));
+               DEBUG(10,("vfs_allocate_file_space: file %s, shrink. Current "
+                         "size %.0f\n", fsp_str_dbg(fsp),
+                         (double)st.st_ex_size));
+
+               contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
 
                flush_write_cache(fsp, SIZECHANGE_FLUSH);
-               if ((ret = vfs_ops->ftruncate(fsp, fsp->fd, (SMB_OFF_T)len)) != -1) {
+               if ((ret = SMB_VFS_FTRUNCATE(fsp, (SMB_OFF_T)len)) != -1) {
                        set_filelen_write_cache(fsp, len);
                }
+
+               contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_SHRINK);
+
                return ret;
        }
 
        /* Grow - we need to test if we have enough space. */
 
+       contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_ALLOC_GROW);
+       contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_ALLOC_GROW);
+
        if (!lp_strict_allocate(SNUM(fsp->conn)))
                return 0;
 
-       len -= st.st_size;
+       len -= st.st_ex_size;
        len /= 1024; /* Len is now number of 1k blocks needed. */
-       space_avail = conn->vfs_ops.disk_free(conn,fsp->fsp_name,False,&bsize,&dfree,&dsize);
+       space_avail = get_dfree_info(conn, fsp->fsp_name->base_name, false,
+                                    &bsize, &dfree, &dsize);
+       if (space_avail == (uint64_t)-1) {
+               return -1;
+       }
 
-       DEBUG(10,("vfs_allocate_file_space: file %s, grow. Current size %.0f, needed blocks = %.0f, space avail = %.0f\n",
-                       fsp->fsp_name, (double)st.st_size, (double)len, (double)space_avail ));
+       DEBUG(10,("vfs_allocate_file_space: file %s, grow. Current size %.0f, "
+                 "needed blocks = %.0f, space avail = %.0f\n",
+                 fsp_str_dbg(fsp), (double)st.st_ex_size, (double)len,
+                 (double)space_avail));
 
        if (len > space_avail) {
                errno = ENOSPC;
@@ -495,193 +537,176 @@ int vfs_set_filelen(files_struct *fsp, SMB_OFF_T len)
 {
        int ret;
 
-       release_level_2_oplocks_on_change(fsp);
-       DEBUG(10,("vfs_set_filelen: ftruncate %s to len %.0f\n", fsp->fsp_name, (double)len));
+       contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_SET_FILE_LEN);
+
+       DEBUG(10,("vfs_set_filelen: ftruncate %s to len %.0f\n",
+                 fsp_str_dbg(fsp), (double)len));
        flush_write_cache(fsp, SIZECHANGE_FLUSH);
-       if ((ret = fsp->conn->vfs_ops.ftruncate(fsp, fsp->fd, len)) != -1)
+       if ((ret = SMB_VFS_FTRUNCATE(fsp, len)) != -1) {
                set_filelen_write_cache(fsp, len);
+               notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
+                            FILE_NOTIFY_CHANGE_SIZE
+                            | FILE_NOTIFY_CHANGE_ATTRIBUTES,
+                            fsp->fsp_name->base_name);
+       }
+
+       contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_SET_FILE_LEN);
 
        return ret;
 }
 
 /****************************************************************************
- Transfer some data (n bytes) between two file_struct's.
+ A vfs fill sparse call.
+ Writes zeros from the end of file to len, if len is greater than EOF.
+ Used only by strict_sync.
+ Returns 0 on success, -1 on failure.
 ****************************************************************************/
 
-static files_struct *in_fsp;
-static files_struct *out_fsp;
+#define SPARSE_BUF_WRITE_SIZE (32*1024)
 
-static ssize_t read_fn(int fd, void *buf, size_t len)
+int vfs_fill_sparse(files_struct *fsp, SMB_OFF_T len)
 {
-       return in_fsp->conn->vfs_ops.read(in_fsp, fd, buf, len);
+       int ret;
+       SMB_STRUCT_STAT st;
+       SMB_OFF_T offset;
+       size_t total;
+       size_t num_to_write;
+       ssize_t pwrite_ret;
+
+       ret = SMB_VFS_FSTAT(fsp, &st);
+       if (ret == -1) {
+               return ret;
+       }
+
+       if (len <= st.st_ex_size) {
+               return 0;
+       }
+
+       DEBUG(10,("vfs_fill_sparse: write zeros in file %s from len %.0f to "
+                 "len %.0f (%.0f bytes)\n", fsp_str_dbg(fsp),
+                 (double)st.st_ex_size, (double)len,
+                 (double)(len - st.st_ex_size)));
+
+       contend_level2_oplocks_begin(fsp, LEVEL2_CONTEND_FILL_SPARSE);
+
+       flush_write_cache(fsp, SIZECHANGE_FLUSH);
+
+       if (!sparse_buf) {
+               sparse_buf = SMB_CALLOC_ARRAY(char, SPARSE_BUF_WRITE_SIZE);
+               if (!sparse_buf) {
+                       errno = ENOMEM;
+                       ret = -1;
+                       goto out;
+               }
+       }
+
+       offset = st.st_ex_size;
+       num_to_write = len - st.st_ex_size;
+       total = 0;
+
+       while (total < num_to_write) {
+               size_t curr_write_size = MIN(SPARSE_BUF_WRITE_SIZE, (num_to_write - total));
+
+               pwrite_ret = SMB_VFS_PWRITE(fsp, sparse_buf, curr_write_size, offset + total);
+               if (pwrite_ret == -1) {
+                       DEBUG(10,("vfs_fill_sparse: SMB_VFS_PWRITE for file "
+                                 "%s failed with error %s\n",
+                                 fsp_str_dbg(fsp), strerror(errno)));
+                       ret = -1;
+                       goto out;
+               }
+               if (pwrite_ret == 0) {
+                       ret = 0;
+                       goto out;
+               }
+
+               total += pwrite_ret;
+       }
+
+       set_filelen_write_cache(fsp, len);
+
+       ret = 0;
+ out:
+       contend_level2_oplocks_end(fsp, LEVEL2_CONTEND_FILL_SPARSE);
+       return ret;
 }
 
-static ssize_t write_fn(int fd, const void *buf, size_t len)
+/****************************************************************************
+ Transfer some data (n bytes) between two file_struct's.
+****************************************************************************/
+
+static ssize_t vfs_read_fn(void *file, void *buf, size_t len)
 {
-       return out_fsp->conn->vfs_ops.write(out_fsp, fd, buf, len);
+       struct files_struct *fsp = (struct files_struct *)file;
+
+       return SMB_VFS_READ(fsp, buf, len);
 }
 
-SMB_OFF_T vfs_transfer_file(files_struct *in, files_struct *out, SMB_OFF_T n)
+static ssize_t vfs_write_fn(void *file, const void *buf, size_t len)
 {
-       in_fsp = in;
-       out_fsp = out;
+       struct files_struct *fsp = (struct files_struct *)file;
+
+       return SMB_VFS_WRITE(fsp, buf, len);
+}
 
-       return transfer_file_internal(in_fsp->fd, out_fsp->fd, n, read_fn, write_fn);
+SMB_OFF_T vfs_transfer_file(files_struct *in, files_struct *out, SMB_OFF_T n)
+{
+       return transfer_file_internal((void *)in, (void *)out, n,
+                                     vfs_read_fn, vfs_write_fn);
 }
 
 /*******************************************************************
  A vfs_readdir wrapper which just returns the file name.
 ********************************************************************/
 
-char *vfs_readdirname(connection_struct *conn, void *p)
+const char *vfs_readdirname(connection_struct *conn, void *p,
+                           SMB_STRUCT_STAT *sbuf, char **talloced)
 {
-       struct dirent *ptr;
-       char *dname;
+       SMB_STRUCT_DIRENT *ptr= NULL;
+       const char *dname;
+       char *translated;
+       NTSTATUS status;
 
        if (!p)
                return(NULL);
 
-       ptr = (struct dirent *)conn->vfs_ops.readdir(conn,p);
+       ptr = SMB_VFS_READDIR(conn, (DIR *)p, sbuf);
        if (!ptr)
                return(NULL);
 
        dname = ptr->d_name;
 
+
 #ifdef NEXT2
        if (telldir(p) < 0)
                return(NULL);
 #endif
 
-#ifdef HAVE_BROKEN_READDIR
+#ifdef HAVE_BROKEN_READDIR_NAME
        /* using /usr/ucb/cc is BAD */
        dname = dname - 2;
 #endif
 
-       return(dname);
-}
-
-/* VFS options not quite working yet */
-
-#if 0
-
-/***************************************************************************
-  handle the interpretation of the vfs option parameter
- *************************************************************************/
-static BOOL handle_vfs_option(char *pszParmValue, char **ptr)
-{
-    struct vfs_options *new_option, **options = (struct vfs_options **)ptr;
-    int i;
-
-    /* Create new vfs option */
-
-    new_option = (struct vfs_options *)malloc(sizeof(*new_option));
-    if (new_option == NULL) {
-       return False;
-    }
-
-    ZERO_STRUCTP(new_option);
-
-    /* Get name and value */
-
-    new_option->name = strtok(pszParmValue, "=");
-
-    if (new_option->name == NULL) {
-       return False;
-    }
-
-    while(isspace(*new_option->name)) {
-       new_option->name++;
-    }
-
-    for (i = strlen(new_option->name); i > 0; i--) {
-       if (!isspace(new_option->name[i - 1])) break;
-    }
-
-    new_option->name[i] = '\0';
-    new_option->name = strdup(new_option->name);
-
-    new_option->value = strtok(NULL, "=");
-
-    if (new_option->value != NULL) {
-
-       while(isspace(*new_option->value)) {
-           new_option->value++;
+       status = SMB_VFS_TRANSLATE_NAME(conn, dname, vfs_translate_to_windows,
+                                       talloc_tos(), &translated);
+       if (NT_STATUS_EQUAL(status, NT_STATUS_NONE_MAPPED)) {
+               *talloced = NULL;
+               return dname;
        }
-       
-       for (i = strlen(new_option->value); i > 0; i--) {
-           if (!isspace(new_option->value[i - 1])) break;
+       *talloced = translated;
+       if (!NT_STATUS_IS_OK(status)) {
+               return NULL;
        }
-       
-       new_option->value[i] = '\0';
-       new_option->value = strdup(new_option->value);
-    }
-
-    /* Add to list */
-
-    DLIST_ADD(*options, new_option);
-
-    return True;
+       return translated;
 }
 
-#endif
-
-
 /*******************************************************************
  A wrapper for vfs_chdir().
 ********************************************************************/
 
-int vfs_ChDir(connection_struct *conn, char *path)
-{
-       int res;
-       static pstring LastDir="";
-
-       if (strcsequal(path,"."))
-               return(0);
-
-       if (*path == '/' && strcsequal(LastDir,path))
-               return(0);
-
-       DEBUG(3,("vfs_ChDir to %s\n",path));
-
-       res = vfs_chdir(conn,path);
-       if (!res)
-               pstrcpy(LastDir,path);
-       return(res);
-}
-
-/* number of list structures for a caching GetWd function. */
-#define MAX_GETWDCACHE (50)
-
-static struct {
-       SMB_DEV_T dev; /* These *must* be compatible with the types returned in a stat() call. */
-       SMB_INO_T inode; /* These *must* be compatible with the types returned in a stat() call. */
-       char *dos_path; /* The pathname in DOS format. */
-       BOOL valid;
-} ino_list[MAX_GETWDCACHE];
-
-extern BOOL use_getwd_cache;
-
-/****************************************************************************
- Prompte a ptr (to make it recently used)
-****************************************************************************/
-
-static void array_promote(char *array,int elsize,int element)
+int vfs_ChDir(connection_struct *conn, const char *path)
 {
-       char *p;
-       if (element == 0)
-               return;
-
-       p = (char *)malloc(elsize);
-
-       if (!p) {
-               DEBUG(5,("array_promote: malloc fail\n"));
-               return;
-       }
-
-       memcpy(p,array + element * elsize, elsize);
-       memmove(array + elsize,array,elsize*element);
-       memcpy(array,p,elsize);
-       SAFE_FREE(p);
+       return SMB_VFS_CHDIR(conn,path);
 }
 
 /*******************************************************************
@@ -690,203 +715,1211 @@ static void array_promote(char *array,int elsize,int element)
  format. Note this can be called with conn == NULL.
 ********************************************************************/
 
-char *vfs_GetWd(connection_struct *conn, char *path)
+char *vfs_GetWd(TALLOC_CTX *ctx, connection_struct *conn)
 {
-       pstring s;
-       static BOOL getwd_cache_init = False;
-       SMB_STRUCT_STAT st, st2;
-       int i;
+        char s[PATH_MAX+1];
+       char *result = NULL;
+       DATA_BLOB cache_value;
+       struct file_id key;
+       struct smb_filename *smb_fname_dot = NULL;
+       struct smb_filename *smb_fname_full = NULL;
+       NTSTATUS status;
 
        *s = 0;
 
-       if (!use_getwd_cache)
-               return(vfs_getwd(conn,path));
-
-       /* init the cache */
-       if (!getwd_cache_init) {
-               getwd_cache_init = True;
-               for (i=0;i<MAX_GETWDCACHE;i++) {
-                       string_set(&ino_list[i].dos_path,"");
-                       ino_list[i].valid = False;
-               }
+       if (!lp_getwd_cache()) {
+               goto nocache;
        }
 
-       /*  Get the inode of the current directory, if this doesn't work we're
-               in trouble :-) */
+       status = create_synthetic_smb_fname(ctx, ".", NULL, NULL,
+                                           &smb_fname_dot);
+       if (!NT_STATUS_IS_OK(status)) {
+               errno = map_errno_from_nt_status(status);
+               goto out;
+       }
 
-       if (vfs_stat(conn, ".",&st) == -1) {
-               DEBUG(0,("Very strange, couldn't stat \".\" path=%s\n", path));
-               return(vfs_getwd(conn,path));
+       if (SMB_VFS_STAT(conn, smb_fname_dot) == -1) {
+               /*
+                * Known to fail for root: the directory may be NFS-mounted
+                * and exported with root_squash (so has no root access).
+                */
+               DEBUG(1,("vfs_GetWd: couldn't stat \".\" error %s "
+                        "(NFS problem ?)\n", strerror(errno) ));
+               goto nocache;
        }
 
+       key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
 
-       for (i=0; i<MAX_GETWDCACHE; i++) {
-               if (ino_list[i].valid) {
+       if (!memcache_lookup(smbd_memcache(), GETWD_CACHE,
+                            data_blob_const(&key, sizeof(key)),
+                            &cache_value)) {
+               goto nocache;
+       }
 
-                       /*  If we have found an entry with a matching inode and dev number
-                               then find the inode number for the directory in the cached string.
-                               If this agrees with that returned by the stat for the current
-                               directory then all is o.k. (but make sure it is a directory all
-                               the same...) */
+       SMB_ASSERT((cache_value.length > 0)
+                  && (cache_value.data[cache_value.length-1] == '\0'));
 
-                       if (st.st_ino == ino_list[i].inode && st.st_dev == ino_list[i].dev) {
-                               if (vfs_stat(conn,ino_list[i].dos_path,&st2) == 0) {
-                                       if (st.st_ino == st2.st_ino && st.st_dev == st2.st_dev &&
-                                                       (st2.st_mode & S_IFMT) == S_IFDIR) {
-                                               pstrcpy (path, ino_list[i].dos_path);
+       status = create_synthetic_smb_fname(ctx, (char *)cache_value.data,
+                                           NULL, NULL, &smb_fname_full);
+       if (!NT_STATUS_IS_OK(status)) {
+               errno = map_errno_from_nt_status(status);
+               goto out;
+       }
 
-                                               /* promote it for future use */
-                                               array_promote((char *)&ino_list[0],sizeof(ino_list[0]),i);
-                                               return (path);
-                                       } else {
-                                               /*  If the inode is different then something's changed,
-                                                       scrub the entry and start from scratch. */
-                                               ino_list[i].valid = False;
-                                       }
-                               }
-                       }
+       if ((SMB_VFS_STAT(conn, smb_fname_full) == 0) &&
+           (smb_fname_dot->st.st_ex_dev == smb_fname_full->st.st_ex_dev) &&
+           (smb_fname_dot->st.st_ex_ino == smb_fname_full->st.st_ex_ino) &&
+           (S_ISDIR(smb_fname_dot->st.st_ex_mode))) {
+               /*
+                * Ok, we're done
+                */
+               result = talloc_strdup(ctx, smb_fname_full->base_name);
+               if (result == NULL) {
+                       errno = ENOMEM;
                }
+               goto out;
        }
 
-       /*  We don't have the information to hand so rely on traditional methods.
-               The very slow getcwd, which spawns a process on some systems, or the
-               not quite so bad getwd. */
+ nocache:
 
-       if (!vfs_getwd(conn,s)) {
-               DEBUG(0,("vfs_GetWd: vfs_getwd call failed, errno %s\n",strerror(errno)));
-               return (NULL);
-       }
+       /*
+        * We don't have the information to hand so rely on traditional
+        * methods. The very slow getcwd, which spawns a process on some
+        * systems, or the not quite so bad getwd.
+        */
 
-       pstrcpy(path,s);
+       if (!SMB_VFS_GETWD(conn,s)) {
+               DEBUG(0, ("vfs_GetWd: SMB_VFS_GETWD call failed: %s\n",
+                         strerror(errno)));
+               goto out;
+       }
 
-       DEBUG(5,("vfs_GetWd %s, inode %.0f, dev %.0f\n",s,(double)st.st_ino,(double)st.st_dev));
+       if (lp_getwd_cache() && VALID_STAT(smb_fname_dot->st)) {
+               key = vfs_file_id_from_sbuf(conn, &smb_fname_dot->st);
 
-       /* add it to the cache */
-       i = MAX_GETWDCACHE - 1;
-       string_set(&ino_list[i].dos_path,s);
-       ino_list[i].dev = st.st_dev;
-       ino_list[i].inode = st.st_ino;
-       ino_list[i].valid = True;
+               memcache_add(smbd_memcache(), GETWD_CACHE,
+                            data_blob_const(&key, sizeof(key)),
+                            data_blob_const(s, strlen(s)+1));
+       }
 
-       /* put it at the top of the list */
-       array_promote((char *)&ino_list[0],sizeof(ino_list[0]),i);
+       result = talloc_strdup(ctx, s);
+       if (result == NULL) {
+               errno = ENOMEM;
+       }
 
-       return (path);
+ out:
+       TALLOC_FREE(smb_fname_dot);
+       TALLOC_FREE(smb_fname_full);
+       return result;
 }
 
 /*******************************************************************
  Reduce a file name, removing .. elements and checking that
- it is below dir in the heirachy. This uses vfs_GetWd() and so must be run
- on the system that has the referenced file system.
- Widelinks are allowed if widelinks is true.
+ it is below dir in the heirachy. This uses realpath.
 ********************************************************************/
 
-BOOL reduce_name(connection_struct *conn, char *s,char *dir,BOOL widelinks)
+NTSTATUS check_reduced_name(connection_struct *conn, const char *fname)
 {
-#ifndef REDUCE_PATHS
-       return True;
+#ifdef REALPATH_TAKES_NULL
+       bool free_resolved_name = True;
 #else
-       pstring dir2;
-       pstring wd;
-       pstring base_name;
-       pstring newname;
-       char *p=NULL;
-       BOOL relative = (*s != '/');
-
-       *dir2 = *wd = *base_name = *newname = 0;
-
-       if (widelinks) {
-               unix_clean_name(s);
-               /* can't have a leading .. */
-               if (strncmp(s,"..",2) == 0 && (s[2]==0 || s[2]=='/')) {
-                       DEBUG(3,("Illegal file name? (%s)\n",s));
-                       return(False);
-               }
+        char resolved_name_buf[PATH_MAX+1];
+       bool free_resolved_name = False;
+#endif
+       char *resolved_name = NULL;
+       char *p = NULL;
 
-               if (strlen(s) == 0)
-                       pstrcpy(s,"./");
+       DEBUG(3,("check_reduced_name [%s] [%s]\n", fname, conn->connectpath));
 
-               return(True);
-       }
+#ifdef REALPATH_TAKES_NULL
+       resolved_name = SMB_VFS_REALPATH(conn,fname,NULL);
+#else
+       resolved_name = SMB_VFS_REALPATH(conn,fname,resolved_name_buf);
+#endif
 
-       DEBUG(3,("reduce_name [%s] [%s]\n",s,dir));
+       if (!resolved_name) {
+               switch (errno) {
+                       case ENOTDIR:
+                               DEBUG(3,("check_reduced_name: Component not a "
+                                        "directory in getting realpath for "
+                                        "%s\n", fname));
+                               return NT_STATUS_OBJECT_PATH_NOT_FOUND;
+                       case ENOENT:
+                       {
+                               TALLOC_CTX *ctx = talloc_tos();
+                               char *tmp_fname = NULL;
+                               char *last_component = NULL;
+                               /* Last component didn't exist. Remove it and try and canonicalise the directory. */
+
+                               tmp_fname = talloc_strdup(ctx, fname);
+                               if (!tmp_fname) {
+                                       return NT_STATUS_NO_MEMORY;
+                               }
+                               p = strrchr_m(tmp_fname, '/');
+                               if (p) {
+                                       *p++ = '\0';
+                                       last_component = p;
+                               } else {
+                                       last_component = tmp_fname;
+                                       tmp_fname = talloc_strdup(ctx,
+                                                       ".");
+                                       if (!tmp_fname) {
+                                               return NT_STATUS_NO_MEMORY;
+                                       }
+                               }
 
-       /* remove any double slashes */
-       all_string_sub(s,"//","/",0);
+#ifdef REALPATH_TAKES_NULL
+                               resolved_name = SMB_VFS_REALPATH(conn,tmp_fname,NULL);
+#else
+                               resolved_name = SMB_VFS_REALPATH(conn,tmp_fname,resolved_name_buf);
+#endif
+                               if (!resolved_name) {
+                                       NTSTATUS status = map_nt_error_from_unix(errno);
 
-       pstrcpy(base_name,s);
-       p = strrchr_m(base_name,'/');
+                                       if (errno == ENOENT || errno == ENOTDIR) {
+                                               status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
+                                       }
 
-       if (!p)
-               return(True);
+                                       DEBUG(3,("check_reduce_named: "
+                                                "couldn't get realpath for "
+                                                "%s (%s)\n",
+                                               fname,
+                                               nt_errstr(status)));
+                                       return status;
+                               }
+                               tmp_fname = talloc_asprintf(ctx,
+                                               "%s/%s",
+                                               resolved_name,
+                                               last_component);
+                               if (!tmp_fname) {
+                                       return NT_STATUS_NO_MEMORY;
+                               }
+#ifdef REALPATH_TAKES_NULL
+                               SAFE_FREE(resolved_name);
+                               resolved_name = SMB_STRDUP(tmp_fname);
+                               if (!resolved_name) {
+                                       DEBUG(0, ("check_reduced_name: malloc "
+                                                 "fail for %s\n", tmp_fname));
+                                       return NT_STATUS_NO_MEMORY;
+                               }
+#else
+                               safe_strcpy(resolved_name_buf, tmp_fname, PATH_MAX);
+                               resolved_name = resolved_name_buf;
+#endif
+                               break;
+                       }
+                       default:
+                               DEBUG(1,("check_reduced_name: couldn't get "
+                                        "realpath for %s\n", fname));
+                               return map_nt_error_from_unix(errno);
+               }
+       }
+
+       DEBUG(10,("check_reduced_name realpath [%s] -> [%s]\n", fname,
+                 resolved_name));
 
-       if (!vfs_GetWd(conn,wd)) {
-               DEBUG(0,("couldn't vfs_GetWd for %s %s\n",s,dir));
-               return(False);
+       if (*resolved_name != '/') {
+               DEBUG(0,("check_reduced_name: realpath doesn't return "
+                        "absolute paths !\n"));
+               if (free_resolved_name) {
+                       SAFE_FREE(resolved_name);
+               }
+               return NT_STATUS_OBJECT_NAME_INVALID;
        }
 
-       if (vfs_ChDir(conn,dir) != 0) {
-               DEBUG(0,("couldn't vfs_ChDir to %s\n",dir));
-               return(False);
+       /* Check for widelinks allowed. */
+       if (!lp_widelinks(SNUM(conn))) {
+                   const char *conn_rootdir;
+
+                   conn_rootdir = SMB_VFS_CONNECTPATH(conn, fname);
+                   if (conn_rootdir == NULL) {
+                           DEBUG(2, ("check_reduced_name: Could not get "
+                                     "conn_rootdir\n"));
+                           if (free_resolved_name) {
+                                   SAFE_FREE(resolved_name);
+                           }
+                           return NT_STATUS_ACCESS_DENIED;
+                   }
+
+                   if (strncmp(conn_rootdir, resolved_name,
+                               strlen(conn_rootdir)) != 0) {
+                           DEBUG(2, ("check_reduced_name: Bad access "
+                                     "attempt: %s is a symlink outside the "
+                                     "share path\n", fname));
+                           if (free_resolved_name) {
+                                   SAFE_FREE(resolved_name);
+                           }
+                           return NT_STATUS_ACCESS_DENIED;
+                   }
        }
 
-       if (!vfs_GetWd(conn,dir2)) {
-               DEBUG(0,("couldn't vfs_GetWd for %s\n",dir));
-               vfs_ChDir(conn,wd);
-               return(False);
+        /* Check if we are allowing users to follow symlinks */
+        /* Patch from David Clerc <David.Clerc@cui.unige.ch>
+                University of Geneva */
+
+#ifdef S_ISLNK
+        if (!lp_symlinks(SNUM(conn))) {
+               struct smb_filename *smb_fname = NULL;
+               NTSTATUS status;
+
+               status = create_synthetic_smb_fname(talloc_tos(), fname, NULL,
+                                                   NULL, &smb_fname);
+               if (!NT_STATUS_IS_OK(status)) {
+                       if (free_resolved_name) {
+                               SAFE_FREE(resolved_name);
+                       }
+                        return status;
+               }
+
+               if ( (SMB_VFS_LSTAT(conn, smb_fname) != -1) &&
+                                (S_ISLNK(smb_fname->st.st_ex_mode)) ) {
+                       if (free_resolved_name) {
+                               SAFE_FREE(resolved_name);
+                       }
+                        DEBUG(3,("check_reduced_name: denied: file path name "
+                                "%s is a symlink\n",resolved_name));
+                       TALLOC_FREE(smb_fname);
+                       return NT_STATUS_ACCESS_DENIED;
+                }
+               TALLOC_FREE(smb_fname);
+        }
+#endif
+
+       DEBUG(3,("check_reduced_name: %s reduced to %s\n", fname,
+                resolved_name));
+       if (free_resolved_name) {
+               SAFE_FREE(resolved_name);
        }
+       return NT_STATUS_OK;
+}
 
-       if (p && (p != base_name)) {
-               *p = 0;
-               if (strcmp(p+1,".")==0)
-                       p[1]=0;
-               if (strcmp(p+1,"..")==0)
-                       *p = '/';
+/**
+ * XXX: This is temporary and there should be no callers of this once
+ * smb_filename is plumbed through all path based operations.
+ */
+int vfs_stat_smb_fname(struct connection_struct *conn, const char *fname,
+                      SMB_STRUCT_STAT *psbuf)
+{
+       struct smb_filename *smb_fname = NULL;
+       NTSTATUS status;
+       int ret;
+
+       status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
+                                                 &smb_fname);
+       if (!NT_STATUS_IS_OK(status)) {
+               errno = map_errno_from_nt_status(status);
+               return -1;
        }
 
-       if (vfs_ChDir(conn,base_name) != 0) {
-               vfs_ChDir(conn,wd);
-               DEBUG(3,("couldn't vfs_ChDir for %s %s basename=%s\n",s,dir,base_name));
-               return(False);
+       if (lp_posix_pathnames()) {
+               ret = SMB_VFS_LSTAT(conn, smb_fname);
+       } else {
+               ret = SMB_VFS_STAT(conn, smb_fname);
        }
 
-       if (!vfs_GetWd(conn,newname)) {
-               vfs_ChDir(conn,wd);
-               DEBUG(2,("couldn't get vfs_GetWd for %s %s\n",s,dir2));
-               return(False);
+       if (ret != -1) {
+               *psbuf = smb_fname->st;
        }
 
-       if (p && (p != base_name)) {
-               pstrcat(newname,"/");
-               pstrcat(newname,p+1);
+       TALLOC_FREE(smb_fname);
+       return ret;
+}
+
+/**
+ * XXX: This is temporary and there should be no callers of this once
+ * smb_filename is plumbed through all path based operations.
+ */
+int vfs_lstat_smb_fname(struct connection_struct *conn, const char *fname,
+                       SMB_STRUCT_STAT *psbuf)
+{
+       struct smb_filename *smb_fname = NULL;
+       NTSTATUS status;
+       int ret;
+
+       status = create_synthetic_smb_fname_split(talloc_tos(), fname, NULL,
+                                                 &smb_fname);
+       if (!NT_STATUS_IS_OK(status)) {
+               errno = map_errno_from_nt_status(status);
+               return -1;
        }
 
-       {
-               size_t l = strlen(dir2);
-               if (dir2[l-1] == '/')
-                       l--;
-
-               if (strncmp(newname,dir2,l) != 0) {
-                       vfs_ChDir(conn,wd);
-                       DEBUG(2,("Bad access attempt? s=%s dir=%s newname=%s l=%d\n",s,dir2,newname,(int)l));
-                       return(False);
-               }
+       ret = SMB_VFS_LSTAT(conn, smb_fname);
+       if (ret != -1) {
+               *psbuf = smb_fname->st;
+       }
 
-               if (relative) {
-                       if (newname[l] == '/')
-                               pstrcpy(s,newname + l + 1);
-                       else
-                               pstrcpy(s,newname+l);
-               } else
-                       pstrcpy(s,newname);
+       TALLOC_FREE(smb_fname);
+       return ret;
+}
+
+/**
+ * Ensure LSTAT is called for POSIX paths.
+ */
+
+NTSTATUS vfs_stat_fsp(files_struct *fsp)
+{
+       int ret;
+
+       if(fsp->is_directory || fsp->fh->fd == -1) {
+               if (fsp->posix_open) {
+                       ret = SMB_VFS_LSTAT(fsp->conn, fsp->fsp_name);
+               } else {
+                       ret = SMB_VFS_STAT(fsp->conn, fsp->fsp_name);
+               }
+               if (ret == -1) {
+                       return map_nt_error_from_unix(errno);
+               }
+       } else {
+               if(SMB_VFS_FSTAT(fsp, &fsp->fsp_name->st) != 0) {
+                       return map_nt_error_from_unix(errno);
+               }
        }
+       return NT_STATUS_OK;
+}
+
+/*
+  generate a file_id from a stat structure
+ */
+struct file_id vfs_file_id_from_sbuf(connection_struct *conn, const SMB_STRUCT_STAT *sbuf)
+{
+       return SMB_VFS_FILE_ID_CREATE(conn, sbuf);
+}
+
+int smb_vfs_call_connect(struct vfs_handle_struct *handle,
+                        const char *service, const char *user)
+{
+       VFS_FIND(connect_fn);
+       return handle->fns->connect_fn(handle, service, user);
+}
 
-       vfs_ChDir(conn,wd);
+void smb_vfs_call_disconnect(struct vfs_handle_struct *handle)
+{
+       VFS_FIND(disconnect);
+       handle->fns->disconnect(handle);
+}
 
-       if (strlen(s) == 0)
-               pstrcpy(s,"./");
+uint64_t smb_vfs_call_disk_free(struct vfs_handle_struct *handle,
+                               const char *path, bool small_query,
+                               uint64_t *bsize, uint64_t *dfree,
+                               uint64_t *dsize)
+{
+       VFS_FIND(disk_free);
+       return handle->fns->disk_free(handle, path, small_query, bsize, dfree,
+                                     dsize);
+}
 
-       DEBUG(3,("reduced to %s\n",s));
-       return(True);
-#endif
+int smb_vfs_call_get_quota(struct vfs_handle_struct *handle,
+                          enum SMB_QUOTA_TYPE qtype, unid_t id,
+                          SMB_DISK_QUOTA *qt)
+{
+       VFS_FIND(get_quota);
+       return handle->fns->get_quota(handle, qtype, id, qt);
+}
+
+int smb_vfs_call_set_quota(struct vfs_handle_struct *handle,
+                          enum SMB_QUOTA_TYPE qtype, unid_t id,
+                          SMB_DISK_QUOTA *qt)
+{
+       VFS_FIND(set_quota);
+       return handle->fns->set_quota(handle, qtype, id, qt);
+}
+
+int smb_vfs_call_get_shadow_copy_data(struct vfs_handle_struct *handle,
+                                     struct files_struct *fsp,
+                                     SHADOW_COPY_DATA *shadow_copy_data,
+                                     bool labels)
+{
+       VFS_FIND(get_shadow_copy_data);
+       return handle->fns->get_shadow_copy_data(handle, fsp, shadow_copy_data,
+                                                labels);
+}
+int smb_vfs_call_statvfs(struct vfs_handle_struct *handle, const char *path,
+                        struct vfs_statvfs_struct *statbuf)
+{
+       VFS_FIND(statvfs);
+       return handle->fns->statvfs(handle, path, statbuf);
+}
+
+uint32_t smb_vfs_call_fs_capabilities(struct vfs_handle_struct *handle,
+                       enum timestamp_set_resolution *p_ts_res)
+{
+       VFS_FIND(fs_capabilities);
+       return handle->fns->fs_capabilities(handle, p_ts_res);
+}
+
+SMB_STRUCT_DIR *smb_vfs_call_opendir(struct vfs_handle_struct *handle,
+                                    const char *fname, const char *mask,
+                                    uint32 attributes)
+{
+       VFS_FIND(opendir);
+       return handle->fns->opendir(handle, fname, mask, attributes);
+}
+
+SMB_STRUCT_DIRENT *smb_vfs_call_readdir(struct vfs_handle_struct *handle,
+                                             SMB_STRUCT_DIR *dirp,
+                                             SMB_STRUCT_STAT *sbuf)
+{
+       VFS_FIND(readdir);
+       return handle->fns->readdir(handle, dirp, sbuf);
+}
+
+void smb_vfs_call_seekdir(struct vfs_handle_struct *handle,
+                         SMB_STRUCT_DIR *dirp, long offset)
+{
+       VFS_FIND(seekdir);
+       handle->fns->seekdir(handle, dirp, offset);
+}
+
+long smb_vfs_call_telldir(struct vfs_handle_struct *handle,
+                         SMB_STRUCT_DIR *dirp)
+{
+       VFS_FIND(telldir);
+       return handle->fns->telldir(handle, dirp);
+}
+
+void smb_vfs_call_rewind_dir(struct vfs_handle_struct *handle,
+                            SMB_STRUCT_DIR *dirp)
+{
+       VFS_FIND(rewind_dir);
+       handle->fns->rewind_dir(handle, dirp);
+}
+
+int smb_vfs_call_mkdir(struct vfs_handle_struct *handle, const char *path,
+                      mode_t mode)
+{
+       VFS_FIND(mkdir);
+       return handle->fns->mkdir(handle, path, mode);
+}
+
+int smb_vfs_call_rmdir(struct vfs_handle_struct *handle, const char *path)
+{
+       VFS_FIND(rmdir);
+       return handle->fns->rmdir(handle, path);
+}
+
+int smb_vfs_call_closedir(struct vfs_handle_struct *handle,
+                         SMB_STRUCT_DIR *dir)
+{
+       VFS_FIND(closedir);
+       return handle->fns->closedir(handle, dir);
+}
+
+void smb_vfs_call_init_search_op(struct vfs_handle_struct *handle,
+                                SMB_STRUCT_DIR *dirp)
+{
+       VFS_FIND(init_search_op);
+       handle->fns->init_search_op(handle, dirp);
+}
+
+int smb_vfs_call_open(struct vfs_handle_struct *handle,
+                     struct smb_filename *smb_fname, struct files_struct *fsp,
+                     int flags, mode_t mode)
+{
+       VFS_FIND(open);
+       return handle->fns->open(handle, smb_fname, fsp, flags, mode);
+}
+
+NTSTATUS smb_vfs_call_create_file(struct vfs_handle_struct *handle,
+                                 struct smb_request *req,
+                                 uint16_t root_dir_fid,
+                                 struct smb_filename *smb_fname,
+                                 uint32_t access_mask,
+                                 uint32_t share_access,
+                                 uint32_t create_disposition,
+                                 uint32_t create_options,
+                                 uint32_t file_attributes,
+                                 uint32_t oplock_request,
+                                 uint64_t allocation_size,
+                                 struct security_descriptor *sd,
+                                 struct ea_list *ea_list,
+                                 files_struct **result,
+                                 int *pinfo)
+{
+       VFS_FIND(create_file);
+       return handle->fns->create_file(
+               handle, req, root_dir_fid, smb_fname, access_mask,
+               share_access, create_disposition, create_options,
+               file_attributes, oplock_request, allocation_size, sd, ea_list,
+               result, pinfo);
+}
+
+int smb_vfs_call_close_fn(struct vfs_handle_struct *handle,
+                         struct files_struct *fsp)
+{
+       VFS_FIND(close_fn);
+       return handle->fns->close_fn(handle, fsp);
+}
+
+ssize_t smb_vfs_call_vfs_read(struct vfs_handle_struct *handle,
+                             struct files_struct *fsp, void *data, size_t n)
+{
+       VFS_FIND(vfs_read);
+       return handle->fns->vfs_read(handle, fsp, data, n);
+}
+
+ssize_t smb_vfs_call_pread(struct vfs_handle_struct *handle,
+                          struct files_struct *fsp, void *data, size_t n,
+                          SMB_OFF_T offset)
+{
+       VFS_FIND(pread);
+       return handle->fns->pread(handle, fsp, data, n, offset);
+}
+
+ssize_t smb_vfs_call_write(struct vfs_handle_struct *handle,
+                          struct files_struct *fsp, const void *data,
+                          size_t n)
+{
+       VFS_FIND(write);
+       return handle->fns->write(handle, fsp, data, n);
+}
+
+ssize_t smb_vfs_call_pwrite(struct vfs_handle_struct *handle,
+                           struct files_struct *fsp, const void *data,
+                           size_t n, SMB_OFF_T offset)
+{
+       VFS_FIND(pwrite);
+       return handle->fns->pwrite(handle, fsp, data, n, offset);
+}
+
+SMB_OFF_T smb_vfs_call_lseek(struct vfs_handle_struct *handle,
+                            struct files_struct *fsp, SMB_OFF_T offset,
+                            int whence)
+{
+       VFS_FIND(lseek);
+       return handle->fns->lseek(handle, fsp, offset, whence);
+}
+
+ssize_t smb_vfs_call_sendfile(struct vfs_handle_struct *handle, int tofd,
+                             files_struct *fromfsp, const DATA_BLOB *header,
+                             SMB_OFF_T offset, size_t count)
+{
+       VFS_FIND(sendfile);
+       return handle->fns->sendfile(handle, tofd, fromfsp, header, offset,
+                                    count);
+}
+
+ssize_t smb_vfs_call_recvfile(struct vfs_handle_struct *handle, int fromfd,
+                             files_struct *tofsp, SMB_OFF_T offset,
+                             size_t count)
+{
+       VFS_FIND(recvfile);
+       return handle->fns->recvfile(handle, fromfd, tofsp, offset, count);
+}
+
+int smb_vfs_call_rename(struct vfs_handle_struct *handle,
+                       const struct smb_filename *smb_fname_src,
+                       const struct smb_filename *smb_fname_dst)
+{
+       VFS_FIND(rename);
+       return handle->fns->rename(handle, smb_fname_src, smb_fname_dst);
+}
+
+int smb_vfs_call_fsync(struct vfs_handle_struct *handle,
+                      struct files_struct *fsp)
+{
+       VFS_FIND(fsync);
+       return handle->fns->fsync(handle, fsp);
+}
+
+int smb_vfs_call_stat(struct vfs_handle_struct *handle,
+                     struct smb_filename *smb_fname)
+{
+       VFS_FIND(stat);
+       return handle->fns->stat(handle, smb_fname);
+}
+
+int smb_vfs_call_fstat(struct vfs_handle_struct *handle,
+                      struct files_struct *fsp, SMB_STRUCT_STAT *sbuf)
+{
+       VFS_FIND(fstat);
+       return handle->fns->fstat(handle, fsp, sbuf);
+}
+
+int smb_vfs_call_lstat(struct vfs_handle_struct *handle,
+                      struct smb_filename *smb_filename)
+{
+       VFS_FIND(lstat);
+       return handle->fns->lstat(handle, smb_filename);
+}
+
+uint64_t smb_vfs_call_get_alloc_size(struct vfs_handle_struct *handle,
+                                    struct files_struct *fsp,
+                                    const SMB_STRUCT_STAT *sbuf)
+{
+       VFS_FIND(get_alloc_size);
+       return handle->fns->get_alloc_size(handle, fsp, sbuf);
+}
+
+int smb_vfs_call_unlink(struct vfs_handle_struct *handle,
+                       const struct smb_filename *smb_fname)
+{
+       VFS_FIND(unlink);
+       return handle->fns->unlink(handle, smb_fname);
+}
+
+int smb_vfs_call_chmod(struct vfs_handle_struct *handle, const char *path,
+                      mode_t mode)
+{
+       VFS_FIND(chmod);
+       return handle->fns->chmod(handle, path, mode);
+}
+
+int smb_vfs_call_fchmod(struct vfs_handle_struct *handle,
+                       struct files_struct *fsp, mode_t mode)
+{
+       VFS_FIND(fchmod);
+       return handle->fns->fchmod(handle, fsp, mode);
+}
+
+int smb_vfs_call_chown(struct vfs_handle_struct *handle, const char *path,
+                      uid_t uid, gid_t gid)
+{
+       VFS_FIND(chown);
+       return handle->fns->chown(handle, path, uid, gid);
+}
+
+int smb_vfs_call_fchown(struct vfs_handle_struct *handle,
+                       struct files_struct *fsp, uid_t uid, gid_t gid)
+{
+       VFS_FIND(fchown);
+       return handle->fns->fchown(handle, fsp, uid, gid);
+}
+
+int smb_vfs_call_lchown(struct vfs_handle_struct *handle, const char *path,
+                       uid_t uid, gid_t gid)
+{
+       VFS_FIND(lchown);
+       return handle->fns->lchown(handle, path, uid, gid);
+}
+
+int smb_vfs_call_chdir(struct vfs_handle_struct *handle, const char *path)
+{
+       VFS_FIND(chdir);
+       return handle->fns->chdir(handle, path);
+}
+
+char *smb_vfs_call_getwd(struct vfs_handle_struct *handle, char *buf)
+{
+       VFS_FIND(getwd);
+       return handle->fns->getwd(handle, buf);
+}
+
+int smb_vfs_call_ntimes(struct vfs_handle_struct *handle,
+                       const struct smb_filename *smb_fname,
+                       struct smb_file_time *ft)
+{
+       VFS_FIND(ntimes);
+       return handle->fns->ntimes(handle, smb_fname, ft);
+}
+
+int smb_vfs_call_ftruncate(struct vfs_handle_struct *handle,
+                          struct files_struct *fsp, SMB_OFF_T offset)
+{
+       VFS_FIND(ftruncate);
+       return handle->fns->ftruncate(handle, fsp, offset);
+}
+
+int smb_vfs_call_kernel_flock(struct vfs_handle_struct *handle,
+                             struct files_struct *fsp, uint32 share_mode,
+                             uint32_t access_mask)
+{
+       VFS_FIND(kernel_flock);
+       return handle->fns->kernel_flock(handle, fsp, share_mode,
+                                        access_mask);
+}
+
+int smb_vfs_call_linux_setlease(struct vfs_handle_struct *handle,
+                               struct files_struct *fsp, int leasetype)
+{
+       VFS_FIND(linux_setlease);
+       return handle->fns->linux_setlease(handle, fsp, leasetype);
+}
+
+int smb_vfs_call_symlink(struct vfs_handle_struct *handle, const char *oldpath,
+                        const char *newpath)
+{
+       VFS_FIND(symlink);
+       return handle->fns->symlink(handle, oldpath, newpath);
+}
+
+int smb_vfs_call_vfs_readlink(struct vfs_handle_struct *handle,
+                             const char *path, char *buf, size_t bufsiz)
+{
+       VFS_FIND(vfs_readlink);
+       return handle->fns->vfs_readlink(handle, path, buf, bufsiz);
+}
+
+int smb_vfs_call_link(struct vfs_handle_struct *handle, const char *oldpath,
+                     const char *newpath)
+{
+       VFS_FIND(link);
+       return handle->fns->link(handle, oldpath, newpath);
+}
+
+int smb_vfs_call_mknod(struct vfs_handle_struct *handle, const char *path,
+                      mode_t mode, SMB_DEV_T dev)
+{
+       VFS_FIND(mknod);
+       return handle->fns->mknod(handle, path, mode, dev);
+}
+
+char *smb_vfs_call_realpath(struct vfs_handle_struct *handle,
+                           const char *path, char *resolved_path)
+{
+       VFS_FIND(realpath);
+       return handle->fns->realpath(handle, path, resolved_path);
+}
+
+NTSTATUS smb_vfs_call_notify_watch(struct vfs_handle_struct *handle,
+                                  struct sys_notify_context *ctx,
+                                  struct notify_entry *e,
+                                  void (*callback)(struct sys_notify_context *ctx,
+                                                   void *private_data,
+                                                   struct notify_event *ev),
+                                  void *private_data, void *handle_p)
+{
+       VFS_FIND(notify_watch);
+       return handle->fns->notify_watch(handle, ctx, e, callback,
+                                        private_data, handle_p);
+}
+
+int smb_vfs_call_chflags(struct vfs_handle_struct *handle, const char *path,
+                        unsigned int flags)
+{
+       VFS_FIND(chflags);
+       return handle->fns->chflags(handle, path, flags);
+}
+
+struct file_id smb_vfs_call_file_id_create(struct vfs_handle_struct *handle,
+                                          const SMB_STRUCT_STAT *sbuf)
+{
+       VFS_FIND(file_id_create);
+       return handle->fns->file_id_create(handle, sbuf);
+}
+
+NTSTATUS smb_vfs_call_streaminfo(struct vfs_handle_struct *handle,
+                                struct files_struct *fsp,
+                                const char *fname,
+                                TALLOC_CTX *mem_ctx,
+                                unsigned int *num_streams,
+                                struct stream_struct **streams)
+{
+       VFS_FIND(streaminfo);
+       return handle->fns->streaminfo(handle, fsp, fname, mem_ctx,
+                                      num_streams, streams);
+}
+
+int smb_vfs_call_get_real_filename(struct vfs_handle_struct *handle,
+                                  const char *path, const char *name,
+                                  TALLOC_CTX *mem_ctx, char **found_name)
+{
+       VFS_FIND(get_real_filename);
+       return handle->fns->get_real_filename(handle, path, name, mem_ctx,
+                                             found_name);
+}
+
+const char *smb_vfs_call_connectpath(struct vfs_handle_struct *handle,
+                                    const char *filename)
+{
+       VFS_FIND(connectpath);
+       return handle->fns->connectpath(handle, filename);
+}
+
+bool smb_vfs_call_strict_lock(struct vfs_handle_struct *handle,
+                             struct files_struct *fsp,
+                             struct lock_struct *plock)
+{
+       VFS_FIND(strict_lock);
+       return handle->fns->strict_lock(handle, fsp, plock);
+}
+
+void smb_vfs_call_strict_unlock(struct vfs_handle_struct *handle,
+                               struct files_struct *fsp,
+                               struct lock_struct *plock)
+{
+       VFS_FIND(strict_unlock);
+       handle->fns->strict_unlock(handle, fsp, plock);
+}
+
+NTSTATUS smb_vfs_call_translate_name(struct vfs_handle_struct *handle,
+                                    const char *name,
+                                    enum vfs_translate_direction direction,
+                                    TALLOC_CTX *mem_ctx,
+                                    char **mapped_name)
+{
+       VFS_FIND(translate_name);
+       return handle->fns->translate_name(handle, name, direction, mem_ctx,
+                                          mapped_name);
+}
+
+NTSTATUS smb_vfs_call_fget_nt_acl(struct vfs_handle_struct *handle,
+                                 struct files_struct *fsp,
+                                 uint32 security_info,
+                                 struct security_descriptor **ppdesc)
+{
+       VFS_FIND(fget_nt_acl);
+       return handle->fns->fget_nt_acl(handle, fsp, security_info,
+                                       ppdesc);
+}
+
+NTSTATUS smb_vfs_call_get_nt_acl(struct vfs_handle_struct *handle,
+                                const char *name,
+                                uint32 security_info,
+                                struct security_descriptor **ppdesc)
+{
+       VFS_FIND(get_nt_acl);
+       return handle->fns->get_nt_acl(handle, name, security_info, ppdesc);
+}
+
+NTSTATUS smb_vfs_call_fset_nt_acl(struct vfs_handle_struct *handle,
+                                 struct files_struct *fsp,
+                                 uint32 security_info_sent,
+                                 const struct security_descriptor *psd)
+{
+       VFS_FIND(fset_nt_acl);
+       return handle->fns->fset_nt_acl(handle, fsp, security_info_sent, psd);
+}
+
+int smb_vfs_call_chmod_acl(struct vfs_handle_struct *handle, const char *name,
+                          mode_t mode)
+{
+       VFS_FIND(chmod_acl);
+       return handle->fns->chmod_acl(handle, name, mode);
+}
+
+int smb_vfs_call_fchmod_acl(struct vfs_handle_struct *handle,
+                           struct files_struct *fsp, mode_t mode)
+{
+       VFS_FIND(fchmod_acl);
+       return handle->fns->fchmod_acl(handle, fsp, mode);
+}
+
+int smb_vfs_call_sys_acl_get_entry(struct vfs_handle_struct *handle,
+                                  SMB_ACL_T theacl, int entry_id,
+                                  SMB_ACL_ENTRY_T *entry_p)
+{
+       VFS_FIND(sys_acl_get_entry);
+       return handle->fns->sys_acl_get_entry(handle, theacl, entry_id,
+                                             entry_p);
+}
+
+int smb_vfs_call_sys_acl_get_tag_type(struct vfs_handle_struct *handle,
+                                     SMB_ACL_ENTRY_T entry_d,
+                                     SMB_ACL_TAG_T *tag_type_p)
+{
+       VFS_FIND(sys_acl_get_tag_type);
+       return handle->fns->sys_acl_get_tag_type(handle, entry_d, tag_type_p);
+}
+
+int smb_vfs_call_sys_acl_get_permset(struct vfs_handle_struct *handle,
+                                    SMB_ACL_ENTRY_T entry_d,
+                                    SMB_ACL_PERMSET_T *permset_p)
+{
+       VFS_FIND(sys_acl_get_permset);
+       return handle->fns->sys_acl_get_permset(handle, entry_d, permset_p);
+}
+
+void * smb_vfs_call_sys_acl_get_qualifier(struct vfs_handle_struct *handle,
+                                         SMB_ACL_ENTRY_T entry_d)
+{
+       VFS_FIND(sys_acl_get_qualifier);
+       return handle->fns->sys_acl_get_qualifier(handle, entry_d);
+}
+
+SMB_ACL_T smb_vfs_call_sys_acl_get_file(struct vfs_handle_struct *handle,
+                                       const char *path_p,
+                                       SMB_ACL_TYPE_T type)
+{
+       VFS_FIND(sys_acl_get_file);
+       return handle->fns->sys_acl_get_file(handle, path_p, type);
+}
+
+SMB_ACL_T smb_vfs_call_sys_acl_get_fd(struct vfs_handle_struct *handle,
+                                     struct files_struct *fsp)
+{
+       VFS_FIND(sys_acl_get_fd);
+       return handle->fns->sys_acl_get_fd(handle, fsp);
+}
+
+int smb_vfs_call_sys_acl_clear_perms(struct vfs_handle_struct *handle,
+                                    SMB_ACL_PERMSET_T permset)
+{
+       VFS_FIND(sys_acl_clear_perms);
+       return handle->fns->sys_acl_clear_perms(handle, permset);
+}
+
+int smb_vfs_call_sys_acl_add_perm(struct vfs_handle_struct *handle,
+                                 SMB_ACL_PERMSET_T permset,
+                                 SMB_ACL_PERM_T perm)
+{
+       VFS_FIND(sys_acl_add_perm);
+       return handle->fns->sys_acl_add_perm(handle, permset, perm);
+}
+
+char * smb_vfs_call_sys_acl_to_text(struct vfs_handle_struct *handle,
+                                   SMB_ACL_T theacl, ssize_t *plen)
+{
+       VFS_FIND(sys_acl_to_text);
+       return handle->fns->sys_acl_to_text(handle, theacl, plen);
+}
+
+SMB_ACL_T smb_vfs_call_sys_acl_init(struct vfs_handle_struct *handle,
+                                   int count)
+{
+       VFS_FIND(sys_acl_init);
+       return handle->fns->sys_acl_init(handle, count);
+}
+
+int smb_vfs_call_sys_acl_create_entry(struct vfs_handle_struct *handle,
+                                     SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry)
+{
+       VFS_FIND(sys_acl_create_entry);
+       return handle->fns->sys_acl_create_entry(handle, pacl, pentry);
+}
+
+int smb_vfs_call_sys_acl_set_tag_type(struct vfs_handle_struct *handle,
+                                     SMB_ACL_ENTRY_T entry,
+                                     SMB_ACL_TAG_T tagtype)
+{
+       VFS_FIND(sys_acl_set_tag_type);
+       return handle->fns->sys_acl_set_tag_type(handle, entry, tagtype);
+}
+
+int smb_vfs_call_sys_acl_set_qualifier(struct vfs_handle_struct *handle,
+                                      SMB_ACL_ENTRY_T entry, void *qual)
+{
+       VFS_FIND(sys_acl_set_qualifier);
+       return handle->fns->sys_acl_set_qualifier(handle, entry, qual);
+}
+
+int smb_vfs_call_sys_acl_set_permset(struct vfs_handle_struct *handle,
+                                    SMB_ACL_ENTRY_T entry,
+                                    SMB_ACL_PERMSET_T permset)
+{
+       VFS_FIND(sys_acl_set_permset);
+       return handle->fns->sys_acl_set_permset(handle, entry, permset);
+}
+
+int smb_vfs_call_sys_acl_valid(struct vfs_handle_struct *handle,
+                              SMB_ACL_T theacl)
+{
+       VFS_FIND(sys_acl_valid);
+       return handle->fns->sys_acl_valid(handle, theacl);
+}
+
+int smb_vfs_call_sys_acl_set_file(struct vfs_handle_struct *handle,
+                                 const char *name, SMB_ACL_TYPE_T acltype,
+                                 SMB_ACL_T theacl)
+{
+       VFS_FIND(sys_acl_set_file);
+       return handle->fns->sys_acl_set_file(handle, name, acltype, theacl);
+}
+
+int smb_vfs_call_sys_acl_set_fd(struct vfs_handle_struct *handle,
+                               struct files_struct *fsp, SMB_ACL_T theacl)
+{
+       VFS_FIND(sys_acl_set_fd);
+       return handle->fns->sys_acl_set_fd(handle, fsp, theacl);
+}
+
+int smb_vfs_call_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
+                                        const char *path)
+{
+       VFS_FIND(sys_acl_delete_def_file);
+       return handle->fns->sys_acl_delete_def_file(handle, path);
+}
+
+int smb_vfs_call_sys_acl_get_perm(struct vfs_handle_struct *handle,
+                                 SMB_ACL_PERMSET_T permset,
+                                 SMB_ACL_PERM_T perm)
+{
+       VFS_FIND(sys_acl_get_perm);
+       return handle->fns->sys_acl_get_perm(handle, permset, perm);
+}
+
+int smb_vfs_call_sys_acl_free_text(struct vfs_handle_struct *handle,
+                                  char *text)
+{
+       VFS_FIND(sys_acl_free_text);
+       return handle->fns->sys_acl_free_text(handle, text);
+}
+
+int smb_vfs_call_sys_acl_free_acl(struct vfs_handle_struct *handle,
+                                 SMB_ACL_T posix_acl)
+{
+       VFS_FIND(sys_acl_free_acl);
+       return handle->fns->sys_acl_free_acl(handle, posix_acl);
+}
+
+int smb_vfs_call_sys_acl_free_qualifier(struct vfs_handle_struct *handle,
+                                       void *qualifier, SMB_ACL_TAG_T tagtype)
+{
+       VFS_FIND(sys_acl_free_qualifier);
+       return handle->fns->sys_acl_free_qualifier(handle, qualifier, tagtype);
+}
+
+ssize_t smb_vfs_call_getxattr(struct vfs_handle_struct *handle,
+                             const char *path, const char *name, void *value,
+                             size_t size)
+{
+       VFS_FIND(getxattr);
+       return handle->fns->getxattr(handle, path, name, value, size);
+}
+
+ssize_t smb_vfs_call_lgetxattr(struct vfs_handle_struct *handle,
+                              const char *path, const char *name, void *value,
+                              size_t size)
+{
+       VFS_FIND(lgetxattr);
+       return handle->fns->lgetxattr(handle, path, name, value, size);
+}
+
+ssize_t smb_vfs_call_fgetxattr(struct vfs_handle_struct *handle,
+                              struct files_struct *fsp, const char *name,
+                              void *value, size_t size)
+{
+       VFS_FIND(fgetxattr);
+       return handle->fns->fgetxattr(handle, fsp, name, value, size);
+}
+
+ssize_t smb_vfs_call_listxattr(struct vfs_handle_struct *handle,
+                              const char *path, char *list, size_t size)
+{
+       VFS_FIND(listxattr);
+       return handle->fns->listxattr(handle, path, list, size);
+}
+
+ssize_t smb_vfs_call_llistxattr(struct vfs_handle_struct *handle,
+                               const char *path, char *list, size_t size)
+{
+       VFS_FIND(llistxattr);
+       return handle->fns->llistxattr(handle, path, list, size);
+}
+
+ssize_t smb_vfs_call_flistxattr(struct vfs_handle_struct *handle,
+                               struct files_struct *fsp, char *list,
+                               size_t size)
+{
+       VFS_FIND(flistxattr);
+       return handle->fns->flistxattr(handle, fsp, list, size);
+}
+
+int smb_vfs_call_removexattr(struct vfs_handle_struct *handle,
+                            const char *path, const char *name)
+{
+       VFS_FIND(removexattr);
+       return handle->fns->removexattr(handle, path, name);
+}
+
+int smb_vfs_call_lremovexattr(struct vfs_handle_struct *handle,
+                             const char *path, const char *name)
+{
+       VFS_FIND(lremovexattr);
+       return handle->fns->lremovexattr(handle, path, name);
+}
+
+int smb_vfs_call_fremovexattr(struct vfs_handle_struct *handle,
+                             struct files_struct *fsp, const char *name)
+{
+       VFS_FIND(fremovexattr);
+       return handle->fns->fremovexattr(handle, fsp, name);
+}
+
+int smb_vfs_call_setxattr(struct vfs_handle_struct *handle, const char *path,
+                         const char *name, const void *value, size_t size,
+                         int flags)
+{
+       VFS_FIND(setxattr);
+       return handle->fns->setxattr(handle, path, name, value, size, flags);
+}
+
+int smb_vfs_call_lsetxattr(struct vfs_handle_struct *handle, const char *path,
+                          const char *name, const void *value, size_t size,
+                          int flags)
+{
+       VFS_FIND(lsetxattr);
+       return handle->fns->lsetxattr(handle, path, name, value, size, flags);
+}
+
+int smb_vfs_call_fsetxattr(struct vfs_handle_struct *handle,
+                          struct files_struct *fsp, const char *name,
+                          const void *value, size_t size, int flags)
+{
+       VFS_FIND(fsetxattr);
+       return handle->fns->fsetxattr(handle, fsp, name, value, size, flags);
+}
+
+int smb_vfs_call_aio_read(struct vfs_handle_struct *handle,
+                         struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
+{
+       VFS_FIND(aio_read);
+       return handle->fns->aio_read(handle, fsp, aiocb);
+}
+
+int smb_vfs_call_aio_write(struct vfs_handle_struct *handle,
+                          struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
+{
+       VFS_FIND(aio_write);
+       return handle->fns->aio_write(handle, fsp, aiocb);
+}
+
+ssize_t smb_vfs_call_aio_return_fn(struct vfs_handle_struct *handle,
+                                  struct files_struct *fsp,
+                                  SMB_STRUCT_AIOCB *aiocb)
+{
+       VFS_FIND(aio_return_fn);
+       return handle->fns->aio_return_fn(handle, fsp, aiocb);
+}
+
+int smb_vfs_call_aio_cancel(struct vfs_handle_struct *handle,
+                           struct files_struct *fsp, SMB_STRUCT_AIOCB *aiocb)
+{
+       VFS_FIND(aio_cancel);
+       return handle->fns->aio_cancel(handle, fsp, aiocb);
+}
+
+int smb_vfs_call_aio_error_fn(struct vfs_handle_struct *handle,
+                             struct files_struct *fsp,
+                             SMB_STRUCT_AIOCB *aiocb)
+{
+       VFS_FIND(aio_error_fn);
+       return handle->fns->aio_error_fn(handle, fsp, aiocb);
+}
+
+int smb_vfs_call_aio_fsync(struct vfs_handle_struct *handle,
+                          struct files_struct *fsp, int op,
+                          SMB_STRUCT_AIOCB *aiocb)
+{
+       VFS_FIND(aio_fsync);
+       return handle->fns->aio_fsync(handle, fsp, op, aiocb);
+}
+
+int smb_vfs_call_aio_suspend(struct vfs_handle_struct *handle,
+                            struct files_struct *fsp,
+                            const SMB_STRUCT_AIOCB * const aiocb[], int n,
+                            const struct timespec *timeout)
+{
+       VFS_FIND(aio_suspend);
+       return handle->fns->aio_suspend(handle, fsp, aiocb, n, timeout);
+}
+
+bool smb_vfs_call_aio_force(struct vfs_handle_struct *handle,
+                           struct files_struct *fsp)
+{
+       VFS_FIND(aio_force);
+       return handle->fns->aio_force(handle, fsp);
+}
+
+bool smb_vfs_call_is_offline(struct vfs_handle_struct *handle,
+                            const char *path, SMB_STRUCT_STAT *sbuf)
+{
+       VFS_FIND(is_offline);
+       return handle->fns->is_offline(handle, path, sbuf);
+}
+
+int smb_vfs_call_set_offline(struct vfs_handle_struct *handle,
+                            const char *path)
+{
+       VFS_FIND(set_offline);
+       return handle->fns->set_offline(handle, path);
 }